Diseases

Western Equine Encephalomyelitis

A form of arboviral encephalitis (which primarily affects horses) endemic to western and central regions of NORTH AMERICA. The causative organism (ENCEPHALOMYELITIS VIRUS, WESTERN EQUINE) may be transferred to humans via the bite of mosquitoes (CULEX tarsalis and others). Clinical manifestations include headache and influenza-like symptoms followed by alterations in mentation, SEIZURES, and COMA. DEATH occurs in a minority of cases. Survivors may recover fully or be left with residual neurologic dysfunction, including PARKINSONISM, POSTENCEPHALITIC. (From Joynt, Clinical Neurology, 1996, Ch26, pp8-9)

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A form of arboviral encephalitis (which primarily affects horses) endemic to western and central regions of NORTH AMERICA. The causative organism (ENCEPHALOMYELITIS VIRUS, WESTERN EQUINE) may be transferred to humans via the bite of mosquitoes (CULEX tarsalis and others). Clinical manifestations include headache and influenza-like symptoms followed by alterations in mentation, SEIZURES, and COMA. DEATH occurs in a minority of cases. Survivors may recover fully or be left with residual neurologic dysfunction, including PARKINSONISM, POSTENCEPHALITIC. (From Joynt, Clinical Neurology, 1996, Ch26, pp8-9)

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

Synonyms

4 entry terms
  • Encephalomyelitis, Western Equine
  • Western Equine Encephalitis
  • Encephalitis, Western Equine
  • Equine Encephalitis, Western

MeSH Record

Aspects Covered

36 allowable subheadings

Indexed with the subheadings blood, cerebrospinal fluid, chemically induced, classification, complications, congenital, diagnosis, diagnostic imaging, diet therapy, drug therapy, economics, embryology, enzymology, epidemiology, ethnology, etiology, genetics, history, immunology, metabolism, microbiology, mortality, nursing, parasitology, pathology, physiopathology, prevention & control, psychology, radiotherapy, rehabilitation, surgery, therapy, transmission, urine, veterinary, virology.

MeSH Record

History Note

2000

MeSH Record

Previous Indexing

  • Encephalitis Viruses (1966-1999)
  • Encephalomyelitis, Equine (1966-1999)

MeSH Hierarchy

Tree Numbers

  1. C01w.207w.245w.340w.450.800
  2. C01w.207w.291w.323.662
  3. C01w.207w.399.750w.450.800
  4. C01w.920.313.078w.370.662
  5. C01w.920.313.156w.655.677
  6. C01w.920.852w.032w.370.662
  7. C01w.920.852w.500w.655.677
  8. C01w.925w.081.343w.655.677
  9. C01w.925w.182w.525w.450.300
  10. C01w.925w.782.930.100w.370.662
  11. C10w.228w.140w.430w.520.750w.450.800
  12. C10w.228w.228w.245w.340w.450.800
  13. C10w.228w.228w.291w.323.662
  14. C10w.228w.228w.399.750w.450.800
  15. C10w.586.250w.520.750w.450.800
  16. C10w.586.500w.406.250

AMA Style

References

  1. National Library of Medicine. Western Equine Encephalomyelitis. Medical Subject Headings (MeSH). 2026. Unique ID D020241. http://id.nlm.nih.gov/mesh/2026/D020241
  2. Western Equine Encephalomyelitis. In: Wikidata. https://www.wikidata.org/wiki/Q18553953